Product Name

Product
ID

UV
transmi(%)

OH
ppm

Type
comparison

Typical
Application

190nm

253.7nm

Clear Quartz Tube

JL600

≥40

≥87

<150

unbaked,GE214,
PH300/308,
Ovisil451

Halogen,germicidal with ozone lamps,heater etc

Dehydroxyl
(baked)

Clear Quartz Tube

JL610

≥40

≥87

≤50

baked,GE214,
PH300/308,
Ovisil451

Halogen,germicidal with ozone lamps,heater etc

JL620

≥40

≥87

≤20

baked,GE214,
PH300/308,
Ovisil452

Mercury,Halogen,heater etc

JL630

≥40

≥87

≤15

baked,GE214,
PH300/308,
Ovisil452

Mercury,Halogen,heater etc

JL640

≥40

≥87

≤10

baked,GE214,
PH300/308MD,
Ovisil452

Mercury,Halogen,heater etc

Low hydroxyl
(Vacuum baked)
Clear Quartz Tube

JL650

≥63

≥87

≤5

GE214,
PH300/308ND,
Ovisil452

Metal halide lamps and other applications requiring hydroxyl free material

JL680

≥63

≥87

≤2

GE214,
PH300/308ED,
Ovisil451

Metal halide lamps and other applications requiring hydroxyl free material

JL690

≥65

≥88

≤1

GE214,
PH300/308SD,
Ovisil451

Metal halide lamps and other applications requiring hydroxyl free material

JL690

≥68

≥89

≤1

GE214,
PH300/308SD,
Ovisil451

High rate of transmittance and hydroxyl free metal halide lamps etc.( produced by import material).